A drum body liner structure

Abstract

This utility model relates to a drum inner lining structure, comprising a drum base and an inner lining. The drum base is provided with an annular groove, and a pad is provided in the annular groove. The inner lining is provided on the inner wall of the drum base and is composed of multiple parts spliced ​​together. The inner lining weld is welded at the pad. The weld of this utility model is welded on the pad, which can effectively avoid the influence of welding on the performance of the base and can effectively ensure the various performances and strength of the base.

Description

Technical Field

[0001] This utility model belongs to the field of equipment manufacturing technology, specifically a drum body lining structure. Background Technology

[0002] Rotary drums are key components of equipment widely used in industrial processes such as filtration, separation, and dewatering. They achieve process control through centrifugal force or pressure difference generated by high-speed rotation. With economic and social development, industrial production and scientific research have higher requirements, and the composition of the media to be separated is becoming increasingly complex. This places new demands on the materials used in rotary drums, requiring them to meet both the strength needed during operation and resistance to media corrosion. However, manufacturing rotary drums entirely from special materials would significantly increase costs. Therefore, researching manufacturing techniques for rotary drum liners is of great significance for the application of rotary drums.

[0003] In the existing drum body liner manufacturing process, the high temperature of the liner welding will affect the performance of the substrate, thus affecting the service life of the substrate. At the same time, there will be gaps between the liner and the substrate during manufacturing. When the drum body rotates at high speed, the liner may separate, thus affecting its use. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a liner structure for a drum body that can both meet the high-speed rotation of the drum body and reduce its manufacturing cost.

[0005] To achieve the above technical objectives, this utility model adopts the following technical solution: a drum inner lining structure, comprising, The drum base and the inner liner, wherein the drum base is provided with an annular groove and a pad is provided in the annular groove; The inner liner is set on the inner wall of the drum base. The inner liner is composed of multiple parts spliced ​​together and welded at the pad strip.

[0006] As a preferred technical solution for the inner lining structure of a rotary drum, the rotary drum base includes an intermediate cylinder, a base, and a surrounding cylinder. The intermediate cylinder is welded to the middle of the base, and the surrounding cylinder is welded to the upper outer side of the base.

[0007] As a preferred technical solution for the inner lining structure of a rotary drum, the intermediate cylinder includes a first curved surface, a first conical surface, a flat surface, a straight cylindrical surface, a second conical surface, and a third conical surface. An annular groove is provided at the connection between the first curved surface and the first conical surface, and an annular groove is provided at the connection between the second conical surface and the third conical surface.

[0008] As a preferred technical solution for the inner lining structure of a rotary drum, the inner lining includes an inner lining cylinder and an inner substrate plate. The inner lining cylinder is attached to the inner wall of the intermediate cylinder, and the inner substrate plate is attached to the inner wall of the base. The weld between the inner lining cylinder and the inner substrate plate is lower than the weld between the intermediate cylinder and the base.

[0009] As a preferred technical solution for the inner lining structure of the drum body, the inner lining further includes a first inner lining cone plate and a second inner lining cone plate. The first inner lining cone plate is in contact with a third cone surface, and the second inner lining cone plate is in contact with a second cone surface. The first inner lining cone plate and the second inner lining cone plate are connected at the pad strip to form a weld.

[0010] As a preferred technical solution for the inner lining structure of a rotary drum, an inner lining ring is provided on the plane, the inner lining ring is connected to the intermediate cylinder by rivets, and an inner lining sealing plate is provided above the inner lining ring.

[0011] As a preferred technical solution for the inner lining structure of the drum body, the inner lining further includes a third inner lining cone plate, which is in contact with the first cone surface, and the third inner lining cone plate and the inner lining plate form a weld at the pad strip.

[0012] The beneficial effects of this utility model are as follows: The inner lining weld is welded on the pad strip, which can effectively avoid the influence of welding on the properties of the substrate and can effectively guarantee the various properties and strength of the substrate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the structure of the rotary drum base of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the entire lifting section of this utility model; Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point I; Figure 4 This is the curve of the substrate heating in this utility model.

[0014] Reference numerals: 2. Drum base; 23. Enclosure cylinder; 214. Straight cylinder surface; 211. First curved surface; 24. Annular groove; 1. Inner liner cylinder; 22. Base; 216. Third conical surface; 215. Second conical surface; 3. First inner liner conical plate; 4. Second inner liner conical plate; 213. Plane; 9. Rivet; 21. Intermediate cylinder; 6. Inner liner ring; 5. Inner liner sealing plate; 20. Inner liner; 212. First conical surface; 7. Third inner liner conical plate; 8. Inner liner base plate; 10. Pad strip. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] Example 1

[0020] Reference Figures 1-4 This embodiment provides a drum body liner structure, including a drum base 2 and an inner liner 20. The drum base 2 is provided with an annular groove 24, and a pad 10 is provided in the annular groove 24. The inner liner 20 is provided on the inner wall of the drum base 2 and is composed of multiple parts spliced ​​together and welded at the pad 10.

[0021] It should be noted that the outer sleeve 23 is a straight cylindrical part set on the periphery, the base 22 is the bottom side part, the base 22 has a hole in the middle, the middle cylinder 21 is set in the hole and welded to the base 22.

[0022] The intermediate cylinder 21, the base 22, and the surrounding cylinder 23 together form a drum base 2 with an internal cavity, and the inner side is set on the inner wall of the drum base 2.

[0023] The pad 10 has a ring structure and is embedded in the ring groove 24.

[0024] The drum base 2 includes an intermediate cylinder 21, a base 22, and a surrounding cylinder 23. The intermediate cylinder 21 is welded to the middle of the base 22, and the surrounding cylinder 23 is welded to the upper outer side of the base 22.

[0025] The intermediate cylinder 21 includes a first curved surface 211, a first conical surface 212, a flat surface 213, a straight cylindrical surface 214, a second conical surface 215, and a third conical surface 216. An annular groove 24 is provided at the connection between the first curved surface 211 and the first conical surface 212, and an annular groove 24 is provided at the connection between the second conical surface 215 and the third conical surface 216.

[0026] The inner liner 20 includes an inner liner cylinder 1 and an inner substrate plate 8. The inner liner cylinder 1 is attached to the inner wall of the intermediate cylinder 21, and the inner substrate plate 8 is attached to the inner wall of the base 22. The weld between the inner liner cylinder 1 and the inner substrate plate 8 is lower than the weld between the intermediate cylinder 21 and the base 22.

[0027] The inner liner 20 also includes a first inner liner cone plate 3 and a second inner liner cone plate 4. The first inner liner cone plate 3 is attached to the third cone surface 216, and the second inner liner cone plate 4 is attached to the second cone surface 215. The first inner liner cone plate 3 and the second inner liner cone plate 4 are connected at the pad strip 10 to form a weld.

[0028] A liner ring 6 is provided on the plane 213. The liner ring 6 is connected to the intermediate cylinder 21 by rivets 9. A liner sealing plate 5 is provided above the liner ring 6.

[0029] The inner liner 20 also includes a third inner liner cone plate 7, which is in contact with the first cone surface 212, and the third inner liner cone plate 7 and the inner liner plate 8 form a weld at the pad strip 10.

[0030] Using this drum structure can effectively avoid welding the liner to the substrate, thus preventing the substrate from being heated and affecting its performance.

[0031] This embodiment also provides a manufacturing method based on the aforementioned drum inner liner structure, including assembling and welding the intermediate cylinder 21, the base 22 and the surrounding cylinder 23 and then machining the whole structure. The second inner lining cone plate 4, the inner lining ring 6, and the third inner lining cone plate 7 are integrally machined. The inner lining cylinder 1 is rolled and formed according to the actual inner diameter of the intermediate cylinder 21; The inner substrate plate 8 is formed by pressing it with a mold. The inner liner cylinder 1 and the inner substrate plate 8 are assembled and welded together. Insert the pad strip 10 into the annular groove 24, and the pad strip 10 fits tightly against the intermediate cylinder 21; Heat the drum base 2, and then insert the inner liner cylinder 1 and the inner liner plate 8 assembly into the drum base 2. Assemble and weld the first inner lining cone plate 3, the second inner lining cone plate 4, the inner lining ring 6, and the third inner lining cone plate 7 in sequence.

[0032] At this point, the assembly of the cylinder circumferential seam is complete.

[0033] The inner lining cylinder 1 is formed by rolling sheet metal, and the inner lining base plate 8 is formed by pressing with a mold. The first inner lining cone plate 3, the second inner lining cone plate 4, and the third inner lining cone plate 7 are machined to meet the requirements. A ring groove 24 and a pad 10 are set at the connection between the cone plate and the base plate. During welding, the inner lining is welded at the pad 10 to avoid affecting the base body during welding. During the assembly of the lining, the base body is heated and then the lining is inserted into the base body. After cooling, the lining and the base body are tightly bonded.

[0034] By adopting the above technical solution, this utility model has at least the following beneficial effects: (1) The inner lining weld is welded on the pad strip, which can effectively avoid the influence of welding on the properties of the base material and can effectively guarantee the various properties and strength of the base material.

[0035] (2) The cone plate layer is machined to effectively ensure the cone size.

[0036] (3) The base plate is formed by mold pressing, which can effectively ensure that the inner lining fits the base.

[0037] (4) The heating assembly process can effectively reduce the gap between the liner and the substrate.

[0038] This invention primarily employs a special welding structure to prevent the liner from being welded directly onto the substrate during welding. Simultaneously, the liner base plate is formed using a mold pressing method, and a heat-fitting method is used during liner assembly, ensuring the drum body meets the requirements of the drawings and standards. This manufacturing method effectively reduces the impact on the substrate's various properties and strength, while ensuring a tight fit between the liner and the substrate.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rotating drum body liner structure, characterized by: include, The drum base (2) and the inner liner (20) are provided with an annular groove (24) and a pad (10) is provided in the annular groove (24); The inner liner (20) is provided on the inner wall of the drum base (2). The inner liner (20) is composed of multiple parts spliced ​​together and welded at the pad strip (10).

2. The rotating drum body liner structure of claim 1, wherein: The drum base (2) includes an intermediate cylinder (21), a base (22) and a surrounding cylinder (23). The intermediate cylinder (21) is welded to the middle of the base (22), and the surrounding cylinder (23) is welded to the upper outer side of the base (22).

3. The rotating drum body liner structure of claim 2, wherein: The intermediate cylinder (21) includes a first curved surface (211), a first conical surface (212), a plane (213), a straight cylindrical surface (214), a second conical surface (215), and a third conical surface (216). An annular groove (24) is provided at the connection between the first curved surface (211) and the first conical surface (212), and an annular groove (24) is provided at the connection between the second conical surface (215) and the third conical surface (216).

4. The rotating drum body liner structure of claim 3, wherein: The liner (20) includes an inner liner cylinder (1) and an inner substrate plate (8). The inner liner cylinder (1) is attached to the inner wall of the intermediate cylinder (21), and the inner substrate plate (8) is attached to the inner wall of the base (22). The weld between the inner liner cylinder (1) and the inner substrate plate (8) is lower than the weld between the intermediate cylinder (21) and the base (22).

5. The rotating drum body liner structure of claim 4, wherein: The inner lining (20) also includes a first inner lining cone plate (3) and a second inner lining cone plate (4). The first inner lining cone plate (3) is fitted with a third cone surface (216), and the second inner lining cone plate (4) is fitted with a second cone surface (215). The first inner lining cone plate (3) and the second inner lining cone plate (4) are connected at the pad strip (10) to form a weld.

6. The rotating drum body liner structure of claim 5, wherein: An inner lining ring (6) is provided on the plane (213). The inner lining ring (6) is connected to the intermediate cylinder (21) by rivets (9). An inner lining sealing plate (5) is provided above the inner lining ring (6).

7. The rotating drum body liner structure of claim 6, wherein: The inner lining (20) also includes a third inner lining cone plate (7), which is in contact with the first cone surface (212), and the third inner lining cone plate (7) and the inner lining substrate (8) form a weld at the pad strip (10).

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